Implementing network config actions [1/2]

This pull contains:
- Renaming ConduitAction to ConfigAction
- Fleshing out existing actions
- Adding CreateBridge action
- Updating network json & schema to allow series of configuration actions
- Removal of use_vlan and vlan attributes from Network
- Updates to test cases, and new test cases where appropriate


 crowbar_framework/test/network_test_helper.rb |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Crowbar-Pull-ID: c05a09b6a629918d13e49126216e287326ea1f12

Crowbar-Release: development